Electrical appliance



I. T. STANTON. ELECTRICAL APPLIANCE.

APPLICATION FAILED JUNE I, |920.

Patented Apr. 26,1921.

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| I I I I I l I l n IIIIIII. IIIIIII UIlk @L 'UNITED STATES PATENTOFFICE.

JOH'N T. STANTON, or SEATTLE', WAsImveTon ELECTRICAL ArrnriaivcnSpeccation of Letters Patent.

Patented Apr. 26, 1921'.

Application mea :rune 1.1920. serial No. 385,782.

To all whom it may concern:

Be it known that I, JOHN T. STANTON,

i a citizen of the United States, residing at ."Seattle, in the countyofKing and State of Washington, have invented certain new and usefulImprovementsin Electrical Appliances, of which the following is aspecification.

vMy invention relates to improvements in electrical appliances and inthe method of making thel same, and the object of my invention is toprovide an eiectro-therapeutic blanket that is adapted for use forimparting electrical heat and radiation to the human body for remedialpurposes.

Another object is to provide an electrotherapeutic blanket manufacturedfrom material that has been suitably treated to renelectro-therapeuticblanket that combines strength and durability with lightness of weight,simplicity and economy in construction, that is sanitary in use, thatcan be folded into a very compact Aform when notin use, and that willnot readily get out of order.

With the above and other objects in view which will appear as thedescription proceeds, my invention resides in the novel construction,combination, adaptation and arrangement of parts hereinafter described4and claimed.

I accomplish these objects by devices illus-A trated in the accompanyingdrawings, where- 1n Figure 1 is a plan'view of an electrotherapeuticblanket embodying my inven tion, parts being broken away;

Fig. 2 is an enlarged fragmentary view of the same, parts being brokenaway to disclose other parts; andy Fig. 3 is a fragmentary view intransverse section of the same taken on broken line 3, 3 of Fig. 2showing more clearly the relative position of the elements .comprisingmy blanket.

Referring to the drawings, throughout tile fabric which may be made ofany suitable material, as crinoline or stifened mus'- -lin, cut in thedesired length and width which sheet of material is then stifl'ened byimmersing in a solution 'of starch or glue and is also'immersed in asolution of magnesite to provide a' fabric that is lire proof and anon-conductor of electricity whereupon it is allowed to dry.

The narrow strip of tape 7 may be made of cotton or other suitablematerial and is stiffened, fire proofed and made a non-conductor ofelectricity and allowed to dry in the identical same manner as the sheetof textile fabric 5.

The insulated copper wire 6 vis laid on the surface of the sheet 5 withthe narrow strip of tape 7 superimposed thereon, the said wire 6 andtape 7 being disposed in rows running longitudinally or transversely ofthe sheet 5 as desired, the said rows being arranged in spaced apartrelation as shown in the drawings, the endsl of the rows of wire 6 andtape 7 being looped or bent at a point adjacent the edges of the sheet 5to form a continuous electrical circuit throughout the structure.

The wire 6 and tape 7 is then stitched with a zig Zag stitch, as at 30,to the sheet 5 by using a zig zag sewing machine in a well known manner.'It will be obvious that the tape when so stitched forms a fireproof andinsulated` pocket for the insulated wire -6 thus preventing any tendencyo r danger of short circuiting the circuit of said wire 6.

The terminals 16 of the wire '6 are connected in any known manner to theinsulated cord 10 at or near one corner of the blanket, the said cord 10emerging from the blanket and projecting a'suitable distance therefromand having its outer ends attached to the cord connector 11. Theextension cord 12 connects the cord connector 11 with the snap switch13, the said cord 12 being of sufficient length to bring the switch 13within easy reach of the user ofsaid blanket. the switch 13 with theelectrlc light socket plug 15 and may be of anysuitable length.

The upper sheet of textile fabric 8 and the lower sheet of textilefabric 9 form the outer covering or quilt of the blanket and may be madeof selected printed cotton material or other suitable textile fabricthat may be found to best serve as a covering for the said blanket.

The extension cord 14 connects l The sheets 8 and 9 are cut slightlylonger and wider than the inner sheet 5 in order to provide sucientmaterial to finish the edges of the blanket as shown more clearly inFig. 3.

The operation of stitching the wire 6 and tape 7 having been completedthe inner sheet 5 is then laid upon the lower sheet 9 and the edges 17of which are turned upwardly and inwardly so that the edges 17 willoverlap Y the edges 18 of the inner sheet 5, as shown in Fig. 3. rllheupper sheet 8 is then superposed upon the inner sheet 5 and its edges 19are turned downwardly and inwardly so that they will lie substantiallyon the ed es 17 of the sheet 9, which edges 19 are fol ed in such manneras lto leave a portion or border 20 projecting beyond the folded edge ofthe lower sheet 9 around the blanket to give said blanket a nishedappearance when the same is completed. The edges having been folded inthe above describedmanner are then sewed with a double stitch 21aroundr` the perimeter of the blanket and as close to the folded edgesas possible.

llt will be obvious by referring to Fig. 3

that the edges 18 of the inner sheet 5 are caught in the stitches 21thus preventing the said sheet from crumpling up within ,the outersheets.

ll have found in practice and after exhaustive experiments that by usinga specic amount of ine copper wire that sufficient resistance is set uptoy produce approximately 100 degrees Fahrenheit of heat and creating aydefinite magnetic field within the blanket when applied to the hum-anbody has `a material benecial eiiect. My blanket also is very useful forimparting electrical heat and radiation to the human body for thepurposeof inducing profuse erspiration and consequently the elimination of thewaste prod ucts therefrom.

l have ,also found in practice that the principle of my electricalappliance is readily adaptable for use in heating rooms. ll constructthe appliance for this purpose in the same manner as hereinbeforedescribed substitutinga good grade of burlap for the crinoline materialforming the inner sheet of the appliance, the burlap being treated forsti'ening, fire proofing and making the same a non-conductor ofelectricity substantially as described for the muslin or crinoine.

1t will be obvious that the principles of my electrical appliance arereadily adaptable and applicable to an extensive variety of heatingdevices such as clothing for aviators, automobile robes, heating padsfor beds, shoes, gauntlets and the like.

From the foregoing description taken in connection with the accompanyingdrawing, the advantages of the construction and of the method ofoperation will be readily apparent to those skilled in the art to whichthe invention pertains, and while I have described the principle ofoperation of the invention, together with the device which ll nowconsider to be the best embodiment thereof, Idesire to have itunderstoodthat the device shown is merely illustrative and that suchchanges may be made when desired as are within the scope of thefollowing claims.

What ll claim is:

-1. The method of fabricating an electrotherapeutic blanket whichconsists in cutting a sheet of textile fabric ofthe desired size andtreating the same with va suitable solution to stiften it then treatingit in a solution to make it iireproof and a non-conductor ofelectricity, then taking a strip of tape and treating it in the s'amemanner as lsaid sheet of textile fabric, then drying said sheet offabric andy said tape, then taking insulated wire and laying it on saidsheet of textile fabric and superposing the said strip of tape on saidwire and stitching both to said sheet, then cutting two sheets oftextile fabric to form the upper and lower covering for said blanket,then laying the first named sheet with its'associated wiring and tape onthe lower covering sheet, then turning the edges of said lower coveringupwardly and in'- wardly so that said edges overlap the edges of thefirst named sheet, then superposing the upper coverin on the first namedsheet -and turning its edges downwardly and inwardly so that the lastnamed folded edges will lie substantially on the folded edges of thesaid lower covering, the edges of said upper covering being folded insuch manner as to leave a portion of the same projecting beyond thefolded edges of the lower covering and stitching theedges of all thesheets together.

2. The method of constructing an electrotherapeutic blanketwhichconsists in cutting a sheet of fabric of the desired size, then treatingthe same in a glutinous solution to stiffen it, then treating it in asolution of magnesite to make it fire proof and a nonconductor ofelectricity, then taking a narrow strip of cotton tape and treating itin a glutinous solution to stid'en it, then treating it in a solution ofmagnesite to make it iire proof and a non-conductor of electricity, thendrying said sheet and said tape, then taking insulated copper wire andlaying it in parallel rows on said sheet and superposing the said tapeon said wire and stitching said wire and said tape to said sheet, thencutting two sheets of fabric of a slightly larger size than the fistnamed sheet to form the upper and lower covering of said blanket, thenlaying the irstnamed sheet with its associated wiring and tape on the;lower sheet, then folding the edgesof the lower sheet upwardly andinwardly so that said edges overlap the edges of the first named sheet,then superposing the upper sheet on the first named sheet and foldingits edges downwardly andlinw-ardly so that the last named folded edgeswill lie substantially on the folded edges of the lower sheet, the edgesof said upper sheet being folded in such manner as to leave a portion ofthe same projecting beyond the folded edges of said lower sheet anddouble stitching the edges of all the sheets together.

In witness whereof, I hereunto subscribe my name this 21st day of May A.D. 1920.

JOHN T. STANTON.

